Quality Policy

     QIANHAO Corporation is committed to providing products and services that consistently meet our customers' expectations of quality and value. We continually monitor and improve our processes as a means to ensure overall customer satisfaction, achieve our quality objectives, and share best practices.

Quality Commitment

    Quality is always the highest priority at QIANHAO. We at ForceBeyond strive to meet and exceed all customer requirements and expectations and provide on-time delivery of defect-free castings, forgings and precision machined parts.
Our commitment to continuous improvement means great value is placed on teamwork, education, training, and prevention-oriented techniques across all possible aspects of company operations.

Quality Assurance

    We and all our partner manufacturers are typically ISO 9001 and/or ISO 14001 and/or IATF 16949 certified. Our customers rely on us to deliver world class quality products. Our standard operating procedure for all customers incorporates the automotive PPAP (Production Part Approval Process) quality system for part qualification.Our quality assurance technicians verify every lot of parts to ensure it meets our customers' high standards.

Quality Compliance
    QIANHAO incorporates a robust quality plan to inspect and verify every lot. Our quality assurance professionals maintain the highest standards of training and education. Prior to exit-factory, all material and dimensional inspections are completed and certified.
Equipping with the latest in inspection technology and precision metrology, our quality team is able to obtain accurate data and pass that information on to our customers whenever required. We offer our customers: First-Article Inspection Reports, SPC Data, PPAP Reports and Final Inspection reports. We also maintain a database with a full complement of quality records for immediate retrieval when required.

Quality Service ＝ Quality Products

    At casting products, customers receive our complete attention. All of our efforts are directed to make sure that customers needs are completely satisfied. If the way we work is not quite fit the way you work, we'll adjust accordingly. If customers have unexpected problem or special request, we will take extra effort to handle it quickly and efficiently.
    At longxing, quality control is an active, not reactive, function of manufacturing. Quality assurance starts the minute raw materials come in the door and continues through every stage of the casting process. We achieve part-to-part consistency, so the last casting is the same high quality as the first.
All our manufactures have quality control systems consistent with ISO 9001:2008 and TS16949:2009 quality control systems.Continuing statistical process control and process capability improvement is applied for all products manufacturing process. Our commitment and continuous effort in improving product quality has established our image as a high quality manufacture and supplier.
    We aim to be world class, committed to customer satisfaction & to encourage the spirit of leadership amongst our dedicated team by creating a healthy environment for continuous growth, profit and prosperity.

We provide various test facilities as mentioned under：

    •  Chemical analysis •  Tensile Strength •  Yield Strength •  Elongation rate •  Shrinkage rate •  Impact Test •  Hardness Test •  Metallography •  Non-Destructive tests(N.D.T.) •  Dye-Penetrant •  Ultrasonic(UT) •  Magnetic particle(MT). •  Radiography(RT) •  surface roughness test •  Video Measurement •  Coordinate Measuring test（CMM）

Hardness Testing

    Hardness is defined as the resistance of the permanent mechanical deformation, which is one of metallic properties. We use modern, automated hardness testers to test the hardness of your product, through methods such as Rockwell hardness, Brinell hardness, Vickers hardness, knoop hardness, case depth hardness in different dimensions.

    Hardness testing is used for two general properties. First is the material property: a. test to check material; b. test harden ability; c. test to confirm process; d. test to predict Tensile strength. Second is the functional property: a. test to confirm functions as designed; b. wear resistance; c. toughness; d.resistance to impact. The method of hardness testing is selected according to the properties of products or customer’s requirements.

Mechanical Testing

    Mechanical testing is conducted to test various mechanical properties of materials including strength, hardness, ductility, toughness, brittleness, etc. There are several types of tests such as strength testing, proof load testing, embrittlement testing, hardness testing, impact (toughness) testing, weld fracture testing, ductility testing. The accurate results of these tests are used to determine suitability of materials for the field application. For the investment casting products, mechanical testing as a self-inspection ensures that the production meet the client's specific requirements.

Magnetic Particle Inspection

    Magnetic particle inspection (MPI) is one of non-destructive testing (NDT) methods used to detect cracks at the surface of ferromagnetic materials such as steels and nickel-based alloys. The test method process is quick and simple in principle and application. It begins with the magnetization of the component. Then the surface is coated with small magnetic particles, which is usually a dry or wet suspension of iron filings. Surface cracks or corrosion pits create a flux leakage field in the magnetized component. The magnetic particles are attracted to the flux leakage and thereby cluster at the crack. This cluster of particles is easier to notice than the actual crack, and this is the basic principle of magnetic particle inspection.                  

    Magnetic particle inspection is used to ensure that there are no defects on the investment casting products such as cracks, seams, inclusions, porosity and so on. Compared with other NDT methods, MPI is easy, quick and cheap to conduct because the environment is not limited. Investment casting products with defects tested by MPI will not be delivered to our customers.

X-Ray Testing

    X-Ray testing is the one of the best nondestructive inspection methods for detecting internal defects of castings.

    In this method, the tested product is exposed under x-ray radiation. Parts of the radiation are absorbed by the product, and the remaining portion of the radiation exposes the radiographic film. Dense material withstands the radiation penetration, so the film is exposed to a lesser degree in those areas, giving the film a lighter appearance. Less dense materials allow more penetration and correlates to darker areas on the film. Any hole, crack or inclusion that is less dense than the casting alloy is revealed as a dark area. X-Ray testing is able to find internal defects of investment casting product including gas porosity and gas holes, shrinkage which appears as dendrite/filamentary/ jagged, cracks and so on.

Leak Testing

    Leak testing plays an important role in our daily safety, environmental protection and the reliability of production processes and products of our daily lives. It thereby is a very important part of the quality control process. Diligently performed leak testing is thereby one of the key processes that separates a decent manufacturer from a great one. The size of the leak that is unacceptable and the best method to use to detect that leak will be dictated by the application. Basically, we use leak testing to determine whether there is air hole on the surface of casting products, and whether the sealing part will leak.

Ultrasonic Inspection

    Ultrasonic nondestructive testing, also known as ultrasonic NDT or simply UT, is a method of characterizing the thickness or internal structure of a test piece through the use of high frequency sound waves. The frequencies, or pitch, used for ultrasonic testing are many times higher than the limit of human hearing, most commonly in the range from 500 KHz to 20 MHz. The time interval between the transmitted ray and reflected ray is recorded by a cathode ray oscilloscope. Any crack or void in the casting results in reflection or some of the sound from the crack which appears as a pip between the two pips representing the thickness of the casting. The depth of the crack from the surface of the casting can be easily calculated from the distance between these pips.

    In general, after forging, an ultrasonic testing is required before quenching to see if the part has internal defects. A pre-cast testing is also required after the final heat treatment and finishing. Ultrasonic Inspection is a very useful and versatile NDT method.